Graphophone sound-box.



H. RIBS. GBAPHOPHOFE SOUND BOX. APPLICATION mum in. 24', mos,

Patented Sept 22, 1908.

Qnocutbv played upon a gra hophone'varies with the scription which now follows cont rol without. theuse of glue'or wax;

.har'and t-llc tlltlllllil'figlll. 1 v I Like n'umcras designate corrcspomhng 1 UNITED STATES PATENT OFFICE.

or BALTIMORE, MARYLAND.

' Specification of Letters Patent.

' onnmiorrroma 'S'OUND-BOX.

Patented Sept 22, 190s."

Application filed nun 24, 1908. set-mire. 422,902.

To all whom it may concern:

Be it known that I, IIARRY-N1ES a citizen of the United States, residing at Baltimore, State of Mar 'land, have invented certain new and usei ul Improvements in Graphophone Sound-Boxes, of which the following is a specification.

My invention relates to sound boxes for graphophones and particularly to means for ing the degree of vibration of the stylus hair, whereby the pitch of the co1npoi sitionbeing luyed may be varied at will. By the use 0 this invention; a graphophone record is given a 'widely increased range. It is a well known fact that the key of a piece speed of the recur L I accon'iplish this purpose of varying the key withoutvarying. the speed of the record, by the means hereinafter set forth;

A furtl'icr object of the invention is toso const'nictthe parts that the weight of the sound box will be decreased and a neat'and ornamental structure )rovided.

i A further object of the invention is the pro vision of improved means for securing the inner end of the'stylus barto the diaphragm Further objects and advantages of the invention will beset forth in the detailed de- In the accompanying d1-awing l*igure 1 is a side elevation of a graphophone sound box Constructed in accordance with the invention. Fig. 2 is a sectional. view upon line :5 x of Fig. l and looking in the'direction indicated by the arrows and Fig. 3 is a detail view of the connection between thestyllus parts in all of the ligurcs of the drawing. Referring to the druwingl the numeral designates the usual t ubnlarmemberadaptedto be secured to the horn of the graphophone (not shown). A shallow recess (i is formed in the i'aceol' a plate 7' and the tubular momher 5' is secured to this plate. A ring 8 is adapted to bcclamped firmly against the outer edge of tlielate 7 by screws 9. The outer edge of the iaphra-inn 1() lies betweentwopmrking rings 11 and 12, these packing rings being preferably of blotting paper which I iind retains it-s life orelnst-icity in-l definitely. l pon the contrary, rubber or like resilientpacking rings. lose their elasmeans for clamping said diaphragm within JQ.

'cated in Fig. 1.

withoutremoving the horn.

' ticit-v in the course of time. In securing the inner end of the stylus bar 13 to the diaphragm, I first secure the metallic washers 14 and 15 to the center of the diaphragm by a rivet 16. I then' solder the inner end 'of the stylus bar to' the outer washer as is best essary to use either wax or glue to secure the stylus bar to the diaphragm. A spr ng tongue 18 is secured h screws 19 to the ring 8. The free end of this spring tongue carries aqioint 20 which enters a recess 21 formed in one side of an enlarged portion 22 of the stylus bar. A set-screw. 23 is threaded into the plate 7 and ring 8 and has a )ointed end which enters a recess 24 tonne in the opposite side of this enlarged portion. A recessed head 25 formed upon the outer end of the stylus bar is adapted to receive the.

usual pin '26 beneath which the record travels. A set screw 27 provides means for holding the pin 26 in position;

.The operation of the device is as follows The direction of rotation of the record is that indicated by the arrow a. v The enlarged shoulder 22 of the stvlus barheing engaged by the point 20 and the screw 23, said stylus bar is caused to maintain the posit-ion indi- It will be seen, however, that by screwing up or unscrewing the screw 23, the stylus bar will be more or less rigidly B Y OFBALTinOREJLLARYLUI), Assieson or oxen -LF 'ro nines neonate; I

indicated at 17in Fig. 3. Thus it is unnecbound between the pointed end of this screw v andthe spring tongue 1 and that consequently its degree r i viziration may be controlled while the gIt'xQlIUIJlJO'DG is running and I have found-' in actual practice that this control of the vibration of thestylusbar enables me to produce any desired modification of the pitch of therecord. From' the foregoing description it will be seen that simple and ellicicnt means ar herein provided for accomplishing the ob- ]0cts of the invention, but while the elements shown and described are well adapted to.

serve the purpose I or which they areintcnded,

it is to be understood that the invention is not limited to the precise construction set forth but includes withinits purview such changes as may he made within-the scope of the appended claims.

I loving described claim is 1. In a graphophone sound box the combi-' nation with a body portion of a diaphragm,

my invention, what I;

. M we said body portion, a stylus bar, means forengage one side ofun enlargedportion of said stylus'bar and a'set screw threaded into the body portion and adapted to engage the other side 'of said enlarged portion ofth'e stylus bar. i

2. In a graphophone sound box the combination with a. body portion, of o diaphragm, means for clamping said diaphragm within said body portion, a stylus bar, neuns for securing the inner end of said stylus barto'said dia 'ihragm, a spring tongue secured to said body portion. having a free outer end which engugesone. side of the stylus bar and a leterully movable and manually operable memher which engages the opposite side of'suid stylus bar to bind said'stylus baibetween itself and the free end of the spring tongue to thereby control the degree of vibration of said stylus bar. v I

3. In agraplmphone sound box, the combination with a body portionyof a diaphragm, a clamping ring adapted to clampsaid diaphragm within said body 'portion, a stylus bur, means for connecting the inner end of thestylus bar to said diaphragm, a spring member comprising a base portion which is secured to the outerface of theclamping ring, and-an off-set tou ue member having a resilient free end whici lies outside of the l stylus bar, a membercarried by said resilient 5 free end' of the springtongue and adapted to engage-one side of anenlarged portion of said Estylus bar, and a manually operable set {screw working in said body portion and clumping ring and adapted to engage theother side of'said enlarged portion of the stylus bar to bind said stylus bar between E'itself and the resilient free erifi'of the spring j tongue. Q 4-. In a graphophone sound box, the combination with abody portion, of a di'aphra 1', i aclmuping' ring adapted to clamp said iaf phmgm within said body ortion, a st-vlus I bmgineans for ecmnecting t 1e innerend oft-he 5o stylus bar to said diaphragm, a spring member comprising a base portion which is secured to the front. vertical face of the clamping ring and an off-set tongue member havthe stylus bar, and amanually operable set screw working in said body portion and clamping ring and adapted to engra e the innor s de 01 said enlarged portion of t ie stylus 8 bar to bind said stylus bar between itself andthe resilient free end of the spring tongue.

In testimony whereof lal'lix my signature, in presence of two witnesses.

HARRY NIES. Witnesses:

JAMES H. CORRIGAN, THOMAS G. HULL.

ing a. resilient free end which lies outside of 55- 

